Both Sides Seek Salient Lessons in Her Tenure as First Lady; 'Mother of Obamacare'?

The presidential election is three years out and Hillary Clinton hasn't even said she is running, but her political future has already touched off a re-examination of a central part of her past: the 1990s.

Republican researchers are mining archives from the Bill Clinton era in search of material that could be used to hobble her candidacy. In particular, they are laying the groundwork to capitalize on Mrs. Clinton's efforts as chairman of a task force to overhaul the health-care system in 1993-94, casting what they call...